Gas-liquid two-phase flow sedimentation type multi-parameter logging instrument for shale gas horizontal well
A gas-liquid two-phase flow technology for horizontal wells, which is applied in wellbore/well components, measurement, drilling equipment, etc., can solve the problems of difficult measurement of gas phase parameters in shale gas horizontal wells, and achieve static measurement and compact structure , easy to replace the effect
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Embodiment 1
[0039] refer to Figure 1 to Figure 3 As shown, the present invention provides a gas-liquid two-phase flow subsidence type multi-parameter well logging tool for shale gas horizontal wells, taking n=9 as an example for a shale gas horizontal well gas-liquid two-phase flow subsidence The multi-parameter logging tool will be introduced in detail.
[0040] A subsidence multi-parameter well logging tool for gas-liquid two-phase flow in horizontal wells of shale gas, including circuit chamber 7, centralizer II 6, liquid inlet pipe 5, and double-section extruded rubber collector 4 connected in sequence , the controllable rotary accumulation bin 3 and the liquid outlet pipeline 1, the controllable rotary accumulation bin 3 is covered with a centralizer I2, the liquid inlet pipe 5 is provided with a plurality of liquid inlets, and the liquid inlets Evenly distributed around the circumference. The liquid outlet pipe 1 is provided with a liquid outlet, and the circuit chamber 7, the do...
Embodiment 2
[0052] refer to Figure 4 As shown, the control system of the gas-liquid two-phase flow subsidence multi-parameter logging tool for shale gas horizontal wells includes an optical transmitting module, an optical receiving module, a signal processing module, a multi-channel program-controlled switch, and a motor drive circuit module. , Relay module, power supply module, main controller module, timer module.
[0053] The light emitting module is used to provide driving power to the near-infrared emitting device, so that the near-infrared light source emits light;
[0054] The light receiving module is used to convert the light energy in the near-infrared receiving device into electric energy;
[0055] The signal processing module is used to perform differential, amplification and analog-to-digital conversion operations on the received electrical signal, and output a voltage signal reflecting gas holdup information;
[0056] The multi-channel program-controlled switch is used to...
Embodiment 3
[0063] Such as Figure 5 As shown, the control method for the gas-liquid two-phase flow subsidence multi-parameter logging tool control system in shale gas horizontal wells is as follows: with n(n≥3,n∈N * ) group of near-infrared absorption optical fiber sensor program-controlled switch, extruded rubber collector program-controlled switch, accumulative bin controllable liquid inlet relay switch, accumulative bin controllable liquid outlet relay switch, controllable accumulative bin rotation angle, etc. instruction. The instructions are parsed as follows:
[0064] The control steps of the intelligent terminal are as follows:
[0065] S1, the initial state, analyze the work instructions, under the condition of gas-liquid stratified flow in shale gas horizontal wells, open the extruded rubber collector 4 programmable switch, controllable liquid inlet 3-4 relay switch and controllable liquid outlet Port 3-3 relay switch, the fluid enters the controllable rotary accumulation bin...
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