Southwest Petroleum University

Chengdu University of Technology

Yuan Zhong

Chen Zhang

Yiquan Ma

Huaguo Wen

Chao Ma

Yixin Dong

Jintong Liang

Gang Zhou

Shaohui Wang

Wenbin Tang

Bolin Zhang

Yunchuan Zeng

Hang Li

Wei Li

Qingyou Liu

Yan Chen

Xiao Tan

Xin Wang

Yang Wang

Ping Li

Xingming Wang

Xiangchao Shi

Yuming Wang

Xiangye Kong

Yuehao Liu

Hu Deng

Tieshan Zhang

Yuchuan An

Yu Yi

Qing Tu

Yangbing Li

Jing Nie

Yiting Sun

Fanyao Jin

Zhicheng Li

Hongxiang Lei

Gaocheng Feng

Ming Xian

Jianchuan Wu

Shihong Xiao

Dengwei Li

Xu Si

The invention provides a sampling device for geological fluid detection, relates to the technical field of fluid detection. The sampling device comprises a support frame, the support frame is of an L-shaped structure, and a second support plate is arranged at an upper portion of the support frame; the protection cover is mounted at the corner of a bottom portion of the support frame. The water fixing member is clamped above the bottom portion of the support frame; the locking inclined block is mounted at the bottom portion of the; and the detector is provided with a water inlet pipe. Fluid at different depths is detected through cooperation of the mounting sleeve and the lifting frame, a fluid drainage tube is wound around the winding wheel, the mounting sleeve is driven by the lifting frame to adjust the position through the arrangement of the gear and the rack, the fluid is sampled through the sampling test tube.

Sampling device for geological fluid detection

The present invention provides a multifunctional rock mechanics tester, pertaining to the technical field of mechanics tester, consisting of a base; wherein a power mechanism is mounted on the top of the base, two tension testing mechanisms are arranged on the power mechanism in an up-and-down symmetrical way, a clamping mechanism is mounted on each tension testing mechanism, a rock testing block is clamped between the two clamping mechanisms. The present invention realizes the tension and pressure testing of the rock test block through the arrangement of tension testing mechanism and pressure testing mechanism, thus improving the functionality of the present mechanics tester, which not only reduces the testing cost, but also effectively decreases the occupied space; the present invention solves the problem that the traditional mechanics tester can only complete one kind of test when it is used.

Multifunctional rock mechanics tester

A method for predicting and optimizing an ROP for oil and gas drilling based on Bayesian optimization includes: acquiring raw drilling data according to a preset sampling period, constructing an initial sample data set based on the raw drilling data, constructing an ROP prediction model based on the initial sample data set, and predicting an ROP at a next sample point through a Gaussian process regression based on the ROP prediction model. The present invention realizes rapid analysis of historical drilling data and accurate prediction of an ROP range at a sample point in a feasible domain. The method can obtain an optimized ROP and an optimized engineering parameter through Bayesian optimization, and obtain an engineering parameter corresponding to an optimal ROP. The method has few restrictions on the drilling engineering parameter and the raw formation parameter, improves prediction accuracy, and avoids the problem of blurred parameter value boundaries.

Method for predicting and optimizing rate of penetration (ROP) for oil and gas drilling based on bayesian optimization

A rotation guidance apparatus belonging to the technical field of oil drilling equipment. An end part of a lower connector has a ball-socketed ball-joint rod, and a drill bit is connected to the ball-socketed ball-joint rod. Several circumferentially and evenly distributed piston holes are provided in a side wall of the lower connector, wherein a piston matches each piston hole and a piston rod connected to the piston is movably connected to the ball-socketed ball-joint rod. An eccentrically-placed valve core is connected to a controller provided in an upper connector, wherein a working face of the eccentrically-placed valve core is opposite to the piston holes and rotation of the eccentrically-placed valve core makes the pistons in the piston holes move to control the rotation guidance of the ball-socketed ball-joint rod.

Dynamic inwardly eccentrically-placed directional drill bit type rotation guidance apparatus

Growing community of inventors

Chengdu, China

Yuan Zhong