New technology has been called upon in Ecuador to help increase reserves and optimize the management of fluid in several reservoirs. Autonomous Inflow Control Devices (AICD) have provided increased oil production and decreased water production with installations in the Ginta field. When compared to neighboring wells completed with stand-alone screen technology and producing the same total liquid, the AICD installation initially produced more oil with a lower water cut percentage. Over several months, the water cut in the AICD installation eventually reached a similar level to that of offset completions; however, allowed significant more oil recovery prior to reaching that point. The heavy oil in these fields is approximately 60cP in viscosity. The wells are still in the evaluation phase; however, early data is of interest.Due to its autonomous sensing functionality, fluid viscosity dictates the path the produced fluid will take through the AICD. Higher viscosity oil takes a relatively non-restrictive path whereas low viscosity water is sent on a tortuous path causing a decrease in flow rate through that particular tool. A well completed with a system of AICDs and oil swelling packers for annular isolation restricts zones with high water ratios which in turn stimulates neighboring oil zones.This paper presents oil production data over time for two AICD heavy oil installations in Ecuador and compares the data to that from neighboring wells in the field. The benefit of AICD technology for reservoir management and production optimization will be discussed.
Objective: To assess the natural evolution of low-grade squamous intraepithelial lesions (LSIL) in a retrospective study conducted in a specialized primary care setting of patients detected from the cervical cancer prevention program. Materials and Methods: A review of all cytological examinations between January and December 2002, with 24 months follow-up was conducted in LSIL patients. Follow-up with cytological testing and colposcopy were performed every 6 months, and a biopsy was performed in cases that were indicated by protocol. Patients were not systemically or topically treated in any case. Results: During the study period, 4,152 women received cytology testing, and 122 had LSIL (prevalence, 2.9%). One hundred eleven patients (91%) completed the follow-up, and the remaining patients were lost for various reasons. The age distribution was as follows: 3.2% (G20 years), 34.4% (20Y29 years), 25.4% (30Y39 years), 27.2% (40Y49 years), 9% (50Y59 years), and 0.8% (960 years). Spontaneous regression was observed in 79 (71.3%) of women who completed follow-up. Regression was observed in 51.8% of patients within 12Y18 months and in 48.2% of patients within 18Y24 months of cytological testing. Regression according to age group was as follows: 100% (G20 years), 79.5% (20Y29 years), 60.6% (30Y39 years), 81.8% (40Y49 years), 90.9% (50Y59 years), and 100% (960 years). Conclusions: The general tendency of natural regression in LSIL patients without any specific risk factors identified is supported by our results.
2007, American Society for Colposcopy and Cervical Pathology
Total laparoscopic radical hysterectomy (TLRH) has demonstrated to be a feasible and safe technique for patients affected of early cervical cancer. Small bowel obstruction resulting from a loop volvulus represents a very uncommon postoperative complication in gynecological laparoscopic surgery. We report a case of a patient who presented an intestinal obstruction following a TLRH for cervical cancer. The obstruction was caused by entrapment of a segment of small bowel under the dissected obliterated umbilical artery resulting in a loop incarceration. Wide radical pelvic dissection in radical hysterectomy usually leaves uncovered many dissected retroperitoneal structures. Postoperative bands and adhesions represent the main cause of bowel obstruction after a surgical procedure. Retroperitoneal vessel dissection is mandatory to achieve safely an adequate radicality, but it may lead to intestinal complications that should be taken into account. To our knowledge, this is the first report of postoperative bowel incarceration through the umbilical artery after a laparoscopic oncological procedure.
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