A New Steady Weight-on-Bit Tool Reduces Torque and RPM Variations and Enhances Drilling Efficiency and Bit/BHA Life

Jones, Steve; Feddema, Chad; Sugiura, Junichi

doi:10.2118/178818-ms

Cited by 7 publications

(3 citation statements)

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“…Based on the geometrical, the position matrix could be presented as equations (6). And then, cooperated with equations (3)-( 5), the accelerated speed can be calculated as equations (7).…”

Section: Motion Sensor Array and Data Reckoning Methodsmentioning

confidence: 99%

“…Different from the normal downhole measuring equipment, the miniaturized modules could be installed in the joint of drilling string (including the bit) without any changes to the current drilling system and operation process. As a result of world-wide applications in-bit measurement cooperated with data mining and thermotical analysis is proved a feasible solution for drilling risk prediction, operating parameters optimization, and BHA (including drilling bit) structure improvement [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Novel Tool of In-Bit Measurement for New Clean Geo-Energy Exploitation

Chen

Huang

2022

Advances in Transdisciplinary Engineering

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With the global economy and industry development, environment-friendly and sustainable development have become the mainstream of energy exploration and utilization. However, due to the complex downhole environment, the rate of penetration increment is becoming an urgent need for the new clean geo-energy exploitation. As the direct actuator of rock breaking, the dynamic response of drilling bit is the embodiment of the relationship among drilling parameters, formation characteristics, and drilling string structures. The acquisition and mining of drilling bit’s dynamic response is the key to coordinate the game relation of drilling efficiency, economic benefit and risk control, and to lay the foundation of optimized drilling and ROP increment. In this paper, based on a series of researches on sensor array designing, hydraulic structure optimization, and data reckoning method, a new type of in-bit measurement tool was proposed for new clean geo-energy exploitation. The functionality and reliability of the novel tool were also proved by a field application in a shale gas development project.

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“…Based on the geometrical, the position matrix could be presented as equations (6). And then, cooperated with equations (3)-( 5), the accelerated speed can be calculated as equations (7).…”

Section: Motion Sensor Array and Data Reckoning Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Tool of In-Bit Measurement for New Clean Geo-Energy Exploitation

Chen

Huang

2022

Advances in Transdisciplinary Engineering

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“…This problem was previously solved by the use of wellhead regulators of drilling mud pulsations; pneumatic compensators installed on the drilling pumps; by the difference in rotation frequency of the drill pump shaft and the downhole motor shaft; by changing the drilling mud flow rate; by the use of downhole regulators of the drill bit rotary speed [3], shock absorbers, rotating mass on the downhole motor shaft, centralizers, drill string separators, amplifiers of dynamic WOB, reduction devices, generators of drill string lateral vibrations and others [4,5].…”

Section: Introductionmentioning

confidence: 99%

Method and device increasing efficiency of drilling directional wells

Spasibov¹,

Raspopov²

2017

Proceedings of the International Conference "Actual Issues of Mechanical Engineering" 2017 (AIME 2017)

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Abstract-The main independent controllable parameters in drilling oil and gas wells are the weight on bit and the frequency of bit rotation. When drilling deep directional wells with horizontal sections of the wellbore, the weight comes to the bottomhole with a delay due to increased frictional forces during the movement of the drill string to the bottomhole. This complicates the drilling control procedure. There are the methods of autonomous control of the weight on bit using electrical drilling, downhole motor, and the bit feeders. The research has shown that all known methods can generally only supplement the conventional method of creating weight on bittransmitting the weight of the compressed part of the drilling tool and formation of hydraulic force on the downhole motor shaft. Each of those methods has certain shortcomings and does not solve the problem entirely. This paper presents the method and the device that are most effective for drilling directional wells. It is achieved by generating an additional weight on bit in the device, transferring this weight and the part of the force from the drill string through the upper end of the downhole motor shaft to the bit. Reduction of the frictional forces of the drill string against the borehole wall is carried out by the constant transmission of the bit axial vibrations from the upper end of the shaft of the downhole motor to the drill string and by adjustment of the axial vibrations parameters.

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Drilling Dynamics Data Recorders Now Cost-Effective for Every Operator - Compact Embedded Sensors in Bit and BHA Capture Small Data to Make the Right Decisions Fast

Jones¹,

Sugiura²,

Rose³

et al. 2017

SPE/IADC Drilling Conference and Exhibition

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Historically, everyday drilling dynamics measurements rely on the data captured at Measurement While Drilling (MWD) tools. These measurements only provide data at the location where the MWD is placed in the bottom-hole assembly (BHA). Embedding cost-effective sensors at the drill bit, bit box of steerable motor, top sub of the steerable motor and in the BHA provide data at point of insertion giving a much clearer understanding of downhole dynamics. The sensor package discussed in this paper contains 3-axis vibration, 3-axis shock, two temperature sensors and a new 3-axis gyro. The new 3-axis solid-state gyro sensors were added in the data recorder to measure accurate rotation speed, torsional oscillation and stick-slip at the bit, bit box and other parts of the BHA/drillstring. The data retrieved at the in-bit and bit-box drilling dynamics recorders, along with other points in the BHA, confirmed the effectiveness of "at-point" measurements for correlating bit conditions with downhole drilling dynamics. This granularity of the drilling dynamics data captured "at-point" is typically not seen from an MWD sensor. The in-bit and at-bit measurements revealed critical drilling dynamics dysfunctions that effected bit performance and life. Significant temperature increases at the bit were noted in certain formations where excessive dysfunctions were present. This paper describes the results obtained from "at-point" sensors while drilling in some of the harsher plays in North America Land (NAL). Using proprietary software, the downhole data was merged with EDR data to show the relationship between surface and downhole. Since the bit is typically semi-decoupled from the drillstring (through the mud motor power section), the data gathered from the in-bit and bit-box sensors provide a new dimension of data for bit and drilling tool development.

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A New Steady Weight-on-Bit Tool Reduces Torque and RPM Variations and Enhances Drilling Efficiency and Bit/BHA Life

Cited by 7 publications

References 0 publications

Novel Tool of In-Bit Measurement for New Clean Geo-Energy Exploitation

Novel Tool of In-Bit Measurement for New Clean Geo-Energy Exploitation

Method and device increasing efficiency of drilling directional wells

Drilling Dynamics Data Recorders Now Cost-Effective for Every Operator - Compact Embedded Sensors in Bit and BHA Capture Small Data to Make the Right Decisions Fast

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