Latest developments in drilling and wellbore completion technologies lead to even more complex intervention conditions. Conventional techniques using slickline or coiled tubing are ill-suited for many of these conditions due to operational complexity, effectiveness, or efficiency. Powered mechanical intervention with e-line alleviates some of these limitations and opens lower risk intervention applications. This paper details two applications: a fishing operation that could not be performed with slickline or coiled tubing and a completion disk rupturing operation where the operator saved 1.5 days. Powered mechanical intervention is a combination of complementary technologies that enable "intelligently controlled intervention operations." Downhole tractors enable access into complex well trajectories. Surface-controlled, powered anchors coupled with a linear actuator can generate very high axial forces with precise and real-time downhole measurements of forces and displacement. Operating parameters can be monitored in real time to prevent damage to damaged completion components. Uncontrolled tool movement due to high differential pressures is prevented. Such precise control of downhole forces and movements enables complex intervention operations previously done with coiled tubing or a full workover. The first application example details a fishing operation. A retrievable plug along with its setting tool was stuck in the production tubing after prematurely setting. Multiple fishing attempts with heavy-duty slickline jars were unsuccessful. Coiled tubing was not deployed as its lack of force precision could have generated excessive downhole force and sheared the fish. An e-line-conveyed linear actuator tool was used to latch onto the fish with the help of an overshot and was released from the retrievable plugs by application of optimal, highly controlled, linear force to minimize damage. The second case involved rupturing a ceramic disk installed in completion. High differential pressure across the disk restricted the use of slickline which could have been damaged due to the high expected differential pressure. The alternative with coiled tubing milling requires a larger personnel and equipment footprint in addition to the associated HSE exposure and lack of efficiency. An innovative technique using the e-line linear actuator and a pointed chisel was devised and deployed. Real-time feedback from the tool sensors gave confirmation of the rupturing of various components of the ceramic disk, and the anchors eliminated any tool movement during pressure equalization. The operation was completed in 12 hours, resulting in time savings of almost 36 hours. An e-line intervention is a low risk, effective, and efficient solution while having an accurate depth and positioning, coupled with controlled downhole operations. With precise control of operating parameters, operations which were previously possible with coiled tubing or workover can be done on e-line more efficiently.

The paper work represent the removing oil from the water which is wasted from the machines. The machines get more heated while running, oil and water is used to cool the machine. This investigations is removing oil from water surface is done by skimmer. The oil skimmer is having tube under different operation condition (thickness of oil film, temperature of oil, rotational speed of tube, water PH, oil tube and tube material tube). The oil skimmer has floating tube with fixed length, flexible and discrete segmented model. The design of the wheel according to the tube size and tube length is fixed according to the tank size. Wheel is connected with the belt which is immersed in the oil and water mixer tank. While running the pulley wheel belt is coming upper, the wiper is attached in the frame. Wiper removes the oil coming from the belt. This method is most efficient method to solve the human fatigue and cost effective method.

Traditional intervention operations with coiled tubing (CT) in extended reach horizontal wells might be difficult to access due to lockup from frictional forces and operational inefficiencies. Using conventional shifting tools requires multiple runs to shift open and close multiple sliding sleeve doors (SSD). This paper is a case study of an electric-line powered shifting intervention operation to shift open an SSD, circulate fluids though the sleeve and into the annulus, and then close and repeat this for another SSD in a long horizontal well—all in a single run. The paper discusses the different methods that can be used to efficiently seek and latch onto the shifting profiles using a tractor, wireline cable, and the shifting tool itself with an inchworm motion. The electric-line shifting tool monitored and verified the opening and closing of the sleeves in real time using its onboard sensors. These techniques were effectively deployed in multiple wells that required the annulus to be displaced with fluid after running smart completions. The completions were installed in the well with the SSDs in a closed position, and the shifting intervention consisted in opening the SSD, pumping fluids through the sleeve, and closing the SSD. The tool was anchored in place in the wellbore during the entire circulating operation, and the SSD was subsequently closed. This operation was then repeated on the second SSD in the wellbore, and the entire operation was completed in a single run. Also, no additional caliper run was needed as the shifting tool verified the position of the SSDs. These methods were used in a long horizontal well with the help of real-time measurements. The tool measurements identified if the SSDs were in open or closed position or anywhere in-between. The shifting tool provided confirmation via its measurements that the sleeve was not partially open. This was particularly important when pumping fluid through the annulus to achieve the maximum flow through the sleeve. Operating using electric-line was extremely efficient and eliminated the need to perform multiple runs, thus achieving time savings on the rig. This is the first time that a paper discusses the different seek methods that can be used for carrying out a electric-line mechanical intervention operation. It represents a novel method using a shifting tool as a caliper to probe and measure the completion inner diameter changes while seeking for the profile. It provides a valuable method for reliably and confidently locating and latching onto a shifting profile. Finally, this is the first time that a paper correlates the theoretical mechanics of shifting a sliding sleeve with consistent results from system integration tests and downhole measurements from the real job.

ADNOC has started several years ago few CO2 pilot projects to explore its feasibility for Enhanced Oil Recovery (EOR) in Rumaitha oil field in United Arab Emirates. The CO2 injector wells, to be discussed in this paper, were completed with open-hole horizontal completion, aiming to maximize CO2 injectivity by increasing the contact area between a wellbore and the formation. However, logging these wells for surveillance and intervention has been a challenge, due to the corrosive wellbore environment, tubing minimum restriction and depth reach limitation for both Coiled Tubing (CT) and conventional Tractor conveyance. The current study focusses on using new Slim-hole Tractor, run first time worldwide in CO2 injector wells to convey the logging tools across these long open-hole horizontal wells for rig-less reservoir monitoring and injection optimization. The advanced design Slim Tractor uses high expansion and reciprocating system for increased contact area with the wellbore, to convey logging tools in the horizontal open-hole and cased-hole completions. Several improvements were made over the existing conventional Tractors, such as the increase of pull out of hole capabilities, increased debris tolerance, improved gripping and be able to operate in sour environments. Furthermore, logging while tractoring feature for this advanced Tractor is a key differentiator in horizontal logging to achieve logging objectives the earliest possible while minimizing the acquisition time, reducing the footprint on the well sites, hence less HSE issues and better operations efficiency. This paper presents field experiment conducted on 3 wells in Rumaitha field. The Novel Slim Openhole Tractor was run successfully, first time worldwide in CO2 injector, to convey multiphase production logging tool across a long openhole horizontal completions, in order to determine CO2 zonal injectivity, investigate the presence of possible thief zones, CO2 flow behind the casing. These jobs were conducted real-time to optimize the logging operation and reduce CO2 exposure on the tools. Over 30,000 ft successful tractoring across the 3 horizontal openhole wells. Tractor depth reach exceeded the expectations, almost 100% achieved in 2 wells. The Slim Tractor has also successfully negotiated and passed across multiple washout zones and restrictions encountered, without any issues and the tools were retrieved to surface without any debris clogged on the Tractor arms. Excellent data quality was acquired from the multiphase production logging tool and pulsed Neutron tool during shut-in and flowing at different injection rates in extremely shorter time compared to CT, saving days of operating time. This study helped to delineate the conveyance strategies to be adopted in the upcoming CO2 openhole wells and contributed to enhance the understanding of zonal injectivity distributions across the reservoir. The results will be also incorporated into the reservoir model to understand the effect of injectivity on pore pressure, fracture and faults initiations and their effects on sweep efficiency in EOR and Carbon sequestration in carbon storage projects.