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Horizontal well logging system


Given speed mobile tubing. As the coiled tubing lack of rigidity, its lack of capacity to promote the general instrument in horizontal wells, to promote the length of the restricted level in the tube wells, production logging is to promote the horizontal length is about 500 meters. The depth measurement accuracy of this system is not enough. Coiled tubing diameter generally 1.25 inches; wall thickness of 3 mm, maximum security tension: tensile 29,000 pounds,ed hardy paris, 6,000 pounds of compression. Coiled tubing in horizontal wells, logging sent the following advantages: (1) send all conventional logging tools; (2) from the next row when they can record data; (3) to save rig time (4) logging speed change; design envelope of the return jet pump assembly. Application of this system transfer tubing annulus pressure detonated perforating gun. In MeAr-thurRiver oil commonly used 500--800 lb / inch of negative pressure. Jet pump formation tester well testing technology in 1987 12jt to 1988 for three forehead 4 trial, two of which test for deep WestForerand formation,abercrombie paris, the last test in the shallow strata of the G-Zone. In the G-Zone tests, four wells with tubing conveyed perforating technology segment to perforation. The total length of 158 feet perforation, perforating gun to detonate annulus pressure of 2100 pounds / inch. Xuan well not from the spray. Stop the flow of fluid in the well, the work string pressure to 2000 lb / inch jet pump to convert the envelope to the open state. 0 jet pump test immediately. Hai lifting jet pump wells tested 21 hours. During the test, the injection pressure in the annulus of 2500 lb / inch under the conditions of dynamic fluid flow of 3850 barrels of fluid / day. Formation fluid production of 575 barrels / day, water content was zero. In the flow test,christian louboutin boutique, the shut-in pressure for 10 hours of recovery testing, data analysis showed that the penetration rate of 11 milli-Darcy skin factor of 40, the reservoir pressure of 2870 pounds / inch. . Based on pressure data, the average pressure during the test was estimated at 2250 pounds / inch, 0.26 barrels of production index derived fluid / day / lb / inch. According to the information re-perforating the floor of the wells and plans to acidification. Source: · 2l1992 No. 3 wells and thus more precise instrument. 4. With the twist measurement system (MwD) MwD logging to logging in order to eliminate the pass into the wells caused the problem. Different services companies conduct the type of MWD, accuracy and sensitivity are very different. MwD logging system has the following advantages: (1) drilling, logging} (2) invasion of drilling fluid on the formation of at least '(3) there is no logging will be sent to the bottom of the problem j (4) in the event of drilling accident, the wells have been drilled section will not miss logging data. MwD natural gamma and resistivity logs have been widely used for formation evaluation,abercrombie france, other sensors (neutron porosity and formation density) is MwD gradually be applied. The above-described horizontal well logging system performance can be compared as follows: (5) can be inverted operation J (6) to protect the cable} (7) Equipment Light '(8) does not require workover unit. j. Journal of pumping wells pumping system application logging system, installed in the pre-logging tool wear glass rod at the end of the cable collar, collar bar with a booster pump into pump into the well. Propeller hanging on the cable to be pumped into the drill pipe or tubing, the logging tool into the horizontal section. In the process of logging can be played under the logging. The system has two limitations: (1) As the cable pulling, jumping forward when logging instrument. 0) through the delivery pipe can not be produced, when the application is necessary when the meter double completion. As a result of special design, this system is generally only used for small diameter and production logging. Schlumberger's logging system pumping need to provide a standard measure to promote the constant well logging debate when the horizontal length of the restriction technology restricted open hole logging cased hole production notes liter capacity / cycle the ability to move (rg) ( 0 (m) whether the standard is zero is a slim 65-70 cables of the cable limits the eye and has zero production is 65-70 units within the group Sa-re I a good shot well technology goblets Hong e0 unlimited unlimited with a full set of indium 6 jingyiren transmission standards are set table, no weight limit of small hole pumping light has a good shot and produced almost 700 700 key slim light is weak flexible standard is 0O20O limit and manufacture of light weight tubing is a weak eye is not recommended 6O0MWDMWD weight 90 Ken Good has g0 is only a few instruments in addition to unlimited unlimited two-pipe outside. Source l More articles related to topics：


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