公开(公告)号：US20180171780A1

公开(公告)日：2018-06-21

申请号：US15849713

申请日：2017-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Valery Vasilievich Shako ,  Vyacheslav Pavlovich Pimenov ,  Lev Andreevich Kotlyar

IPC: E21B47/06 ,  E21B41/00 ,  E21B47/10

CPC classification number: E21B47/065 ,  E21B41/0092 ,  E21B47/06 ,  E21B47/10

Abstract: A bottomhole temperature and a bottomhole pressure in a well are measured by means of sensors mounted on a perforation string below all perforation intervals. The measurements are made prior to perforating the well and after perforating the well until a temperature of a produced fluid returns to an initial reservoir temperature. Then the temperature of the produced fluid is measured by means of temperature sensors mounted on the perforation string above each perforation interval and a total production rate of the well is estimated. An excessive thermal energy of the produced fluid is calculated for each temperature sensor mounted on the perforation string above the perforation intervals and production rates of the individual perforation intervals are determined based on the calculated excessive thermal energies of the produced fluid and the known number of perforating charges in each perforation interval.

公开(公告)号：US20140288836A1

公开(公告)日：2014-09-25

申请号：US14353432

申请日：2012-10-25

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Valery Vasilievich Shako ,  Vyacheslav Pavlovich Pimenov ,  Bertrand Theuveny

IPC: E21B49/08

CPC classification number: E21B49/08 ,  E21B43/14 ,  E21B47/1005 ,  E21B2049/085

Abstract: A method for determining the profile of fluids inflowing into multi-zone reservoirs provides for a temperature measurement in a wellbore during the return of the wellbore to thermal equilibrium after drilling and determining a temperature of the fluids inflowing into the wellbore from each pay zone after perforation at an initial stage of production. Specific flow rate for each pay zone is determined by a rate of change of the measured temperatures.

Abstract translation: 用于确定流入多区域储层的流体轮廓的方法提供了在钻井后将井眼返回到热平衡期间的井眼中的温度测量，并且确定穿孔后从每个工作区流入井眼的流体的温度 在生产的初始阶段。 每个付费区的比流量由测量温度的变化率确定。

公开(公告)号：US20160061025A1

公开(公告)日：2016-03-03

申请号：US14804681

申请日：2015-07-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Maria Viktorovna Sidorova ,  Vyacheslav Pavlovich Pimenov ,  Bertrand Theuveny ,  Valery Vasilievich Shako

IPC: E21B47/06

CPC classification number: E21B47/06 ,  E21B49/008

Abstract: A pressure in a wellbore and a temperature at least at one point of the wellbore are measured during wellbore testing. Transient profiles of temperature along the wellbore are determined and changes in a density of a downhole fluid and in a length of atubing when the wellbore is shut in are calculated. The pressure measurement results are corrected on the basis of the calculated changes in the density of the downhole fluid and in the length of the tubing.

Abstract translation: 在井眼测试期间测量井筒中的压力和至少在井筒的一点处的温度。 确定沿着井筒的温度的瞬态分布，并且计算井下流体的密度和在井筒关闭时的长度的沉降的变化。 基于计算出的井下流体的密度变化和管道长度来校正压力测量结果。

公开(公告)号：US20150107827A1

公开(公告)日：2015-04-23

申请号：US14513163

申请日：2014-10-13

Applicant: Schlumberger Technology Corporation

Inventor： Valery Vasilievich Shako ,  Vyacheslav Pavlovich Pimenov ,  Bertrand Theuveny ,  Maria Viktorovna Sidorova

IPC: E21B49/08 ,  E21B47/06

CPC classification number: E21B47/1005

Abstract: Temperature is measured in a shut-in wellbore and rates of temperature change in depth intervals within productive layers and in depth intervals adjacent to the productive layers are determined. Areas are selected in the depth intervals within the productive layers wherein the rate of temperature change is significantly higher than the rate of change in the depth intervals adjacent to the productive layers. A numerical model of temperature change in the shut-in wellbore is created taking into account a filtration effect of a reservoir fluid on the rate of the temperature change in the shut-in wellbore. The measurement results are compared with the numerical modeling results, and their best match is used for determining a fluid filtration velocity in the selected areas in the depth intervals within the productive layers.

Abstract translation: 温度是在闭合井眼中测量的，确定生产层内深度间隔的温度变化速率以及与生产层相邻的深度间隔。 在生产层内的深度间隔中选择区域，其中温度变化率明显高于与生产层相邻的深度间隔的变化率。 考虑到储层流体对关闭井眼中温度变化的速率的过滤效应，产生了关闭井眼中温度变化的数值模型。 将测量结果与数值模拟结果进行比较，并将其最佳匹配用于确定生产层内深度间隔内所选区域中的流体过滤速度。