• <tr id='MQ1aoS'><strong id='MQ1aoS'></strong><small id='MQ1aoS'></small><button id='MQ1aoS'></button><li id='MQ1aoS'><noscript id='MQ1aoS'><big id='MQ1aoS'></big><dt id='MQ1aoS'></dt></noscript></li></tr><ol id='MQ1aoS'><option id='MQ1aoS'><table id='MQ1aoS'><blockquote id='MQ1aoS'><tbody id='MQ1aoS'></tbody></blockquote></table></option></ol><u id='MQ1aoS'></u><kbd id='MQ1aoS'><kbd id='MQ1aoS'></kbd></kbd>

    <code id='MQ1aoS'><strong id='MQ1aoS'></strong></code>

    <fieldset id='MQ1aoS'></fieldset>
          <span id='MQ1aoS'></span>

              <ins id='MQ1aoS'></ins>
              <acronym id='MQ1aoS'><em id='MQ1aoS'></em><td id='MQ1aoS'><div id='MQ1aoS'></div></td></acronym><address id='MQ1aoS'><big id='MQ1aoS'><big id='MQ1aoS'></big><legend id='MQ1aoS'></legend></big></address>

              <i id='MQ1aoS'><div id='MQ1aoS'><ins id='MQ1aoS'></ins></div></i>
              <i id='MQ1aoS'></i>
            1. <dl id='MQ1aoS'></dl>
              1. <blockquote id='MQ1aoS'><q id='MQ1aoS'><noscript id='MQ1aoS'></noscript><dt id='MQ1aoS'></dt></q></blockquote><noframes id='MQ1aoS'><i id='MQ1aoS'></i>
                點擊返∑ 回首頁

                Dezhou Jingrui Petroleum Machinery Co., Ltd.
                Add:No. 3366, Eighth Chongde Road, Economic
                Development Zone, Dezhou City, Shandong Postcode:253000
                Tel:0086-534-2238679 / 2238676
                Mob:0086-13853490976 / 18505348192
                Servie Hotline: 400-0534-029
                E-mail:jingrui@crackpm.com /
                Product Show
                Stage Collar Accessories

                The accessories of MSC/HSC Stage Cementer include a first-stage plug, free-fall opening plug, closing plug, shut-off baffle and pumping-down opening plug. Being made of rubber or aluminum, these parts are easily drillable.


                1. The shut-off baffle is installed in the casing collar, one joint above the float collar.

                2. The first-stage plug is used to isolate the first-stage cement and drilling fluid. On the end of displacement, the first-stage plug lands and effects a seal against the shut-off baffle.

                3. Featuring streamline shape and filled with lead, the free-fall opening plug can quickly free-fall to the lower sliding sleeve. When pressure is applied to the casing, it can open the circulation ports.

                4. The closing plug is used to isolate the second-stage cement and drilling fluid. When running to the upper sliding sleeve, it effect a seat in the stage cementer. Pressure is applied to the casing and the circulation ports are closed.

                5. The pump-down opening plug is used for continuous cementing operation and in deveated wells. It can open the circulation ports directly and quickly, where an the free-fall opening plug needs longer time waiting for falling.

                Product Up:ZSC Drill Pipe Cement Head       Product Down:Spring Type Float Collar & Shoe

                Copyright:Dezhou Jingrui Petroleum Machinery Co., Ltd.